Yes, Moses is considered the person that God used to write what He intended to give His chosen people, Israel according to Nehemiah 8:1.
Jesus confirms the authority of all the old testament in multiple places and specifically Moses as the "writer" of the Law of Moses (first 5 books).
"The grass withers, the flower fades, But the word of our God stands forever." Isaiah 40:8
"Neither the wisest constitution nor the wisest laws will secure the liberty and happiness of a people whose manners are universally corrupt.� Samuel Adams
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